package Collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class SortPoint {
    public static void main(String[] args) {
        List<Point> list = new ArrayList<>();
        list.add(new Point(5,8));
        list.add(new Point(15,60));
        list.add(new Point(57,89));
        list.add(new Point(1,4));
        list.add(new Point(10,8));
        list.add(new Point(22,35));
        System.out.println("lisr原始数据:"+list);

        list.sort(new Comparator<Point>() {
            public int compare(Point o1, Point o2) {
                return o1.getX()- o2.getX();
            }
        });
        list.sort((o1, o2) -> o1.getX()-o2.getX());

        System.out.println("list排序后数据："+list);

        Collections.sort(list, new Comparator<Point>() {
            public int compare(Point o1, Point o2) {
                int len1 = o1.getX()* o1.getX()+ o1.getY()* o1.getY();
                int len2 = o2.getX()* o2.getX()+ o2.getY()* o2.getY();
                return len1-len2;
            }
        });
        Collections.sort(list,(o1, o2) -> {
            int len1 = o1.getX()* o1.getX()+ o1.getY()* o1.getY();
            int len2 = o2.getX()* o2.getX()+ o2.getY()* o2.getY();
            return len1-len2;
        });

        System.out.println("list排序后数据："+list);
    }
}
